/*
 * TMap Designer - A Thematic Map design software
 * Copyright (C) 2006 World Health Organization
 * http://www.who.int
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package who.tmap.imp.dbase.impl;

import who.tmap.common.TMapException;
import who.tmap.common.TMapFactory;
import who.tmap.imp.dbase.DBaseObject;
import who.tmap.imp.dbase.DBaseObjects;

/**
 * @author stl
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class DBaseObjectFactory implements TMapFactory, DBaseObjects {

    private static DBaseObjectFactory instance =null;
    
    /**
     * Private constructor because it is a singleton
     *
     */
    private DBaseObjectFactory() {
    }
    
    /**
     * Lazy instanciation of the factory instance
     * @return
     */
    public static synchronized DBaseObjectFactory getInstance() {
        if ( instance == null ) {
            instance =new DBaseObjectFactory();
        }
        
        return instance;
    }
    
    /**
     * Instanciates business objects
     * @param bizObjectType
     * @return
     * @throws TMapException
     * @throws TMapException
     */
    public DBaseObject get( int dBaseObjectType ) throws TMapException {
        DBaseObject dbaseObject =null;
        
        switch( dBaseObjectType ) {
        	case DBASE_FILE:
        		dbaseObject =new DBaseFileImpl();
        	    break;
        	    
        	case DBASE_HEADER:
        		dbaseObject =new DBaseHeaderImpl();
        	    break;
        	    
        	case DBASE_FIELD_DESCRIPTOR:
        		dbaseObject =new DBaseFieldDescriptorImpl();
        	    break;
        	           	    
        	default:
        	    throw new TMapException( "Invalid dBase object type [" + dBaseObjectType + "]" );
        
        }
        
        return dbaseObject;
    }
}
